marbach



(No Model.) 0. BWERT 8v H. L. MARBAGH.

WIGK FOR OIL STOVES 0R LAMPS.

No. 530,170. Patented Dec; 4, 1894.

IZ EZYZJ/E. M a. at' A mums PETERS 60.. FNOfO-UTHQ, WASHINGTON n c Unirrsn- STATES.

PATENT Carton.

OTTO EWERT AND HERMAN L. MARBACH, OF CLEVELAND, OHIO, ASSIGNORS, BY MESNE ASSIGNMENTS, TO FRANK R. FENNESY, OF. NEW YORK, N. Y.

WlCK FOR OlL-STOVES-OR LAMPS.

SPECIFICATION forming part of Letters Patent No. 530,170, dated December 4,1894.

Application filed February 25, 1892. Serial No. 422,811. (No model.)

ing the oil-to the top of the wick so formed,

where it will burn without charring or destroying said wick.

Our present improvement consists in arranging such laminae in divided or independent bunches,-whereby the oil has more free access to the thin spaces between the laminae than it would have in those constructions in which the wick is undivided into bunches, enabling the thin capillary spaces to be fed laterally along the exposed edges of the bunches and a more abundant supply of oil 2 5 to be carried to the flame. Said bunches are also exposed at their sides and edges, any cotton or other covering being dispensed with, the bunches being connected in such manner that the oil supply to their edges, as aforesaid, is not obstructed.

That the invention may be seen and fully understood by others, reference will be had to the following specification and annexed drawings, forming part thereof. 7

3 5 Figure 1 is an elevation of a form of wick, such as is used in Argand burners. Fig. 2 is a plan view of same. Fig. 3 is a vertical, longitudinal section showing the wick in an Argand burner. Fig. 4 illustrates the flat 4o wick, being an edge view of same and Fig. 5 is a plan View of same in the burner tube.

Like letters of reference designate like parts in the drawings and specification.

Our improved wick is as hereinbefore 5 stated, composed of laminae of mica, bound together by any suitable means, which will leave the bunches exposed at'their edges and sides, as for instance fine wire (wire being illustrated in the accompanying drawings).

In the formation of a circular wick for Argand or circular burners, thin flat sheets of mica are cut into narrow strips a, a, a, Figs. 1, 2, and 3. These strips are formed into bunches as shown and compressed by the wire I), which brings the strips of each bunch into close contact with each other and forms a cylindrical wick, which is placed in the tube formed by the outer wall 0 and inner wall (1, Fig. 3, and allowed to extend down into the oil, the surface of which is denoted by dotted line c, Fig. 3. Capillary attraction will carry the oil to the top of the wick, where it may be ignited and will burn without charring or consuming the wick, owing to mica being noncombustible, which is a well known fact, the wick being a conveyor of the oil to the point of ignition where the said oil is consumed without destruction to the wick. I

In the formation of fiat wicks, the sheets of mica may be cut the desired Width and two or,more of them bound together as shown, Figs. 4 and 5. The wick is used the same as an ordinary cotton wick, being placed in the tube 72., Fig. 5, and raised and lowered with the wheel *6.

In our description we have simply described the wick as used for lamps. It will however readily be seen that the same wick can be used in oil stoves. It is therefore not deemed necessary to encumber the specification with a detailed description of the wick in connection with stoves.

It is essential that the wick consist of a number of bunches of mica, each bunch consisting of a number of narrow strips or laminae laid togetherv and confined only with sufficient firmness as will provide the necessary capillary spaces between the laminae up which the oil will be drawn. So, too, the laminated material should be actually separated into strips or laminae, it not being sufficient to rely upon the natural laminated structure of the material. By using small strips of mica inexpensive wicks may be formed by using waste material that has practically no com- 5 mercial value at present. Of course the same bunch effect may be produced by using large sheets of mica and slitting it vertically into strips not wholly separated from the sheet, and by assembling a quantity of these partially 10o slitted sheets to produce the independent bunches referred to.

e are aware that it has been heretofore proposed to employ for lamp-wicks mineral wool inclosed in cotton textile material; also threads of fine-spun glass inclosed in cotton textile material; also mica rolled or doubled to form the wick; and we do not intend our claim to be understood as extending to wicks of such constructions. We have found by ex-.

periment that neighboring pieces of glass have not sufficient capillary action to be practically effective, and that the mica to be most eifective must be divided into bunches.

W hat we claim as our invention, and desire to secure by Letters Patent, is-

Witnesses:

W. H. BURRIDGE, G. H. HULETT. 

